I saw something on another site for bikes with Burman clutches.they advise running the clutch case DRY and using spray chain grease on the primary chain, to stop the plates sticking.A reference to the Marston Sunbeam parts list for 1932 suggests no lubrication in the primary if Ferodo inserts are used.Does this suggest that non cork material might be prone to sticking if they are lubricated with oil (wrong oil?) The set of plates I replaced after the Manx showed that oil had got on to them via the drive side mains and they were a mess. The noisy gear change was caused by that and, as Tom says, the basket had cracked and spread to such an extent the top plate tang had jammed between 2 slots on the basket.Pulling away was almost as exciting as Charlie Boorman's wheelies(nearly lost the wife once).
The other part of the clutch mechanism that seems to be overlooked is the operating arm in the case.If the small halfmoon section that bears on the rod pin is worn away then you get less lift as well..John
The other part of the clutch mechanism that seems to be overlooked is the operating arm in the case.If the small halfmoon section that bears on the rod pin is worn away then you get less lift as well..John